Operation Testing and Load Assessments
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Questions and Answers

Which testing method is NOT mentioned as a common test used after an examination?

  • Induction testing (correct)
  • Non-destructive testing
  • Pressure tests
  • Calibration checks

What should be done immediately if an examination reveals a defect?

  • Ignore the defect
  • Conduct a re-examination
  • Wait for the formal report
  • Notify the user promptly (correct)

Which type of sling is mentioned as being less pliable compared to other textile slings?

  • Webbing slings
  • Rope slings (correct)
  • Chain slings
  • Round slings

What is a necessary step to ensure the accuracy of a formal report?

<p>Have the contemporary record available (C)</p> Signup and view all the answers

Which characteristic makes identification of various fibre slings extremely difficult?

<p>The fibres visually appear very similar. (B)</p> Signup and view all the answers

Which aspect of fibre slings contributed to their decline in popularity?

<p>Their bulkiness and handling difficulties (A)</p> Signup and view all the answers

What type of record should be kept at the time of the examination?

<p>A contemporary record (C)</p> Signup and view all the answers

Which testing method is often required to inform enforcing authorities of certain defects?

<p>Proof load testing (C)</p> Signup and view all the answers

What is the maximum allowable wear for metal terminal components according to LEEA guidelines?

<p>8% (B)</p> Signup and view all the answers

Which condition indicates that a sling might be experiencing excessive wear?

<p>Fraying of the yarns (B)</p> Signup and view all the answers

What should be done if a fibre sling is found to be soiled?

<p>Wash it with clean water or follow the manufacturer's instructions (C)</p> Signup and view all the answers

What effect does mildew have on natural fibre rope slings?

<p>Significantly reduces strength (B)</p> Signup and view all the answers

What specific defect should be assessed in terminal fittings?

<p>Twisting, permanent deformation, and signs of overloading (D)</p> Signup and view all the answers

Which type of damage is caused by a sling passing over a sharp edge while under tension?

<p>Localized areas of abrasion (D)</p> Signup and view all the answers

What does excessive disarrangement of fibers in synthetic ropes indicate?

<p>Sign of severe damage (B)</p> Signup and view all the answers

Which of the following is NOT a defect that should be assessed in fibre rope slings?

<p>Color fading of the sling (A)</p> Signup and view all the answers

What is the primary advantage of using webbing slings over chains or ropes when lifting loads?

<p>They distribute the load across their full width. (C)</p> Signup and view all the answers

What does the term 'sewn webbing component' refer to?

<p>The woven webbing and its stitching. (D)</p> Signup and view all the answers

What is the purpose of treating the ends of cut webbing?

<p>To prevent fraying and coming apart. (C)</p> Signup and view all the answers

Why are stitching loops above the surface of the webbing problematic?

<p>They can get caught and damaged during use. (D)</p> Signup and view all the answers

What stitch type is used for sewing the webbing component?

<p>Lockstitch (B)</p> Signup and view all the answers

What does the Working Load Limit (WLL) indicate?

<p>The maximum load during a straight pull. (A)</p> Signup and view all the answers

Which material treatment method is typically used for cut webbing ends?

<p>Heating to melt and seal (D)</p> Signup and view all the answers

In what condition is the SWL of a single leg sling equal to its WLL?

<p>When used in straight pull. (A)</p> Signup and view all the answers

Which type of fibre rope is not susceptible to mildew?

<p>HMPE (C)</p> Signup and view all the answers

What is the maximum temperature at which polyester fibre ropes can safely be used?

<p>100°C (B)</p> Signup and view all the answers

Which component is NOT a critical part of textile slings?

<p>Conditioning agents (C)</p> Signup and view all the answers

What should be avoided when marking slings?

<p>Harmful markings on the sling (A)</p> Signup and view all the answers

What is the impact of ultra-violet light on man-made fibre ropes?

<p>Causes solar degradation (C)</p> Signup and view all the answers

Where should slings that incorporate links be marked?

<p>On a tag permanently attached to the master link (D)</p> Signup and view all the answers

Which of the following temperature ranges is correct for Aramid Polyamide ropes?

<p>-50°C to 130°C (A)</p> Signup and view all the answers

What is the recommended approach regarding the routine overload testing of slings?

<p>Not recommended by LEEA unless mandated (C)</p> Signup and view all the answers

What is the potential consequence of using materials that are corroded in lifting applications?

<p>Catastrophic brittle failures (A)</p> Signup and view all the answers

What temperature range is suitable for polyester roundslings?

<p>-40°C to 100°C (C)</p> Signup and view all the answers

What happens to polyamide fibers when they get wet?

<p>They lose up to 15% of their strength (D)</p> Signup and view all the answers

Why is it important to keep slings dry at low temperatures?

<p>To avoid ice formation that can damage the sling (B)</p> Signup and view all the answers

What is solar degradation and which materials are most affected by it?

<p>A weakening effect from UV exposure; man-made fibers (B)</p> Signup and view all the answers

What component is NOT considered critical for the safety of a roundsling?

<p>Belt length (C)</p> Signup and view all the answers

Which factor does NOT affect the strength of polyester or polypropylene slings when wet?

<p>They experience no strength loss (B)</p> Signup and view all the answers

What is the effect of moisture on roundslings at extremely low temperatures?

<p>It can lead to ice formation and damage (D)</p> Signup and view all the answers

Flashcards

Operation Testing

A test that verifies the overall functionality of equipment.

SWL and Deflection Testing

A test that assesses the load-bearing capabilities of equipment.

Proof Load Testing

A test that confirms the equipment can withstand specific weights without failure.

Light Load Testing

A test that evaluates the performance of equipment under typical operating conditions.

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Calibration Checks

A test that ensures equipment operates within established parameters.

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Insulation and Continuity Testing

A test that confirms electrical safety and functionality.

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Pressure Test

A test that checks the integrity of vessels or components under pressure.

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Non-destructive Testing

A test that identifies internal flaws without damaging the equipment.

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Equipment Examination Report

A formal document outlining the results of equipment examination.

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Contemporary Records

Records related to equipment examination must be documented, authenticated, dated and preserved.

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Immediate Defect Notification

Users must be informed promptly if defects are found, especially if hazardous.

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Defect Reporting to Authorities

Certain defects may require reporting to regulatory authorities depending on the jurisdiction.

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Decline of Fiber Rope Slings

Fiber rope slings are becoming less common; webbing and roundslings are preferred.

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Maritime Use of Fiber Slings

The maritime industry still uses fiber slings, often hand-spliced from various strand ropes.

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Characteristics of Natural Fiber Ropes

Natural fiber ropes can be bulky and rough, offering less flexibility compared to synthetic options.

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Mildew Inspection in Fiber Ropes

Fiber ropes must be inspected for mildew growth, which can weaken the rope.

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UV Degradation in Synthetic Fiber Ropes

Synthetic fiber ropes are resistant to mildew but can suffer from UV degradation.

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Temperature Range for Fiber Ropes

The temperature range at which a fiber rope sling can be safely used.

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Manila, Sisal, Hemp, Polypropylene

Suitable for -40°C to 80°C temperatures, commonly used in various applications.

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Polyester and Polyamide (Nylon)

Suitable for -40°C to 100°C temperatures, known for strength and durability.

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HMPE

Suitable for -40°C to 70°C temperatures, highly resistant to abrasion.

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Aramid Polyamide

Suitable for -50°C to 130°C temperatures, known for its high strength.

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Rope Integrity

The integrity of the rope is crucial for its load-bearing capacity.

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Terminal Fittings

Terminal fittings like master links and hooks must be free from damage.

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Thimble Eye Protection

Thimble eye protection is important to prevent rope wear.

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Proper Splicing

Correct splicing techniques ensure the safety and longevity of the sling.

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Identification Labels

Identification labels must be present for compliance and safety verification.

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Marking Requirements

Markings on slings should be made on a plastic sleeve or tag to protect the sling's integrity.

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Secure Tag Attachment

Tags must be securely attached to prevent damage during use.

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Information on Sling Marking

Required information includes SWL, identification details aligned with legislation, and applicable standards.

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Thimble Inspection

Inspect thimbles for signs of collapse, cracks, or twisting.

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Fiber Rope Inspection

Assess fiber ropes for contact damage with fittings and general soiling.

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Terminal Fitting Inspection

Evaluate terminal fittings for deformation or overloading.

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Wear Limits for Terminal Components

Maximum wear for metal terminal components should not exceed 8%.

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Localized Wear Indication

Localized wear indicates mishandling or inadequate care during use.

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Sewn Webbing Component

Comprises woven webbing and stitching, using threads of the same material quality.

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Lockstitch Method

The lockstitch method ensures stability and prevents stitching loops from catching during use.

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Webbing End Treatment

Ends of cut webbing are treated to prevent fraying and maintain integrity.

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Working Load Limit (WLL)

WLL indicates the maximum load for straight pulls and is crucial for operational safety.

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Environmental Factors on Sling Selection

Sling selection must consider factors like chemical exposure, which can affect strength.

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Temperature Range for Roundslings

Roundslings' efficacy depends on the material; polypropylene and polyester have different temperature ratings.

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Moisture Impact at Low Temperatures

Moisture at low temperatures can lead to ice formation, damaging the sling.

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UV Degradation in Textile Fibers

Solar degradation affects all textile fibers, leading to brittleness in synthetic materials over time.

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Summary of Critical Components

Essential components include cover, stitching, metal fittings, and identification labels, all vital for sling safety and functionality.

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Study Notes

Common Tests for Equipment Examination

  • Operation testing verifies overall functionality.
  • SWL (Safe Working Load) and deflection tests assess load-bearing capabilities.
  • Proof load testing confirms the equipment can handle specified weights without failure.
  • Light load testing evaluates performance under normal operational conditions.
  • Calibration checks ensure equipment operates within set parameters.
  • Insulation and continuity testing confirm electrical safety and functionality.
  • Pressure tests check the integrity of vessels and components under pressure.
  • Non-destructive testing identifies internal flaws without damaging the equipment.

Documentation and Records

  • A formal report is generated post-examination for record-keeping.
  • Contemporary records must be authenticated, dated, and retained for future reference.
  • Immediate notification is required for users if defects are detected, especially if hazardous.
  • Specific defects must be reported to enforcing authorities in some regions.

Fibre Slings Overview

  • Use of fibre rope slings is declining; webbing and roundslings are preferred.
  • Maritime industry still utilizes fibre slings, made from various strand ropes, often hand-spliced.
  • Natural fibre ropes can be bulky and rough, offering less pliability than synthetic options.
  • Must be checked for mildew growth which can weaken the rope.
  • Man-made fibre ropes resist mildew but may suffer from UV damage.

Temperature Ranges for Fibre Rope Slings

  • Manila, Sisal, Hemp, Polypropylene: -40°C to 80°C
  • Polyester and Polyamide (Nylon): -40°C to 100°C
  • HMPE: -40°C to 70°C
  • Aramid Polyamide: -50°C to 130°C

Critical Components of Textile Slings

  • Rope integrity is essential for load-bearing capacity.
  • Terminal fittings (master links, hooks) must be free of damage.
  • Thimble eye protection is crucial to prevent rope wear.
  • Proper splicing techniques ensure the safety and longevity of the sling.
  • Identification labels must be present for compliance and safety verification.

Marking Requirements for Slings

  • Markings should protect the sling's integrity and should be made on a plastic sleeve or tag.
  • Tags must be securely attached to prevent damage during use.
  • Required information includes SWL, identification details aligned with legislation, and applicable standards.

Examination Scope for Defects

  • Inspect thimbles for signs of collapse, cracks, or twisting.
  • Assess fibre ropes for contact damage with fittings and general soiling.
  • Evaluate terminal fittings for deformation or overloading.
  • Maximum wear for metal terminal components should not exceed 8%.
  • Localized wear indicates mishandling or inadequate care during use.

Sewn Webbing Component

  • Comprises woven webbing and stitching; all threads used are of the same material quality.
  • Lockstitch method ensures stability and prevents stitching loops from catching during use.
  • Ends of cut webbing are treated to prevent fraying and maintain integrity.

Working Load Limit (WLL)

  • WLL indicates the maximum load for straight pulls and is crucial for operational safety.
  • Selection of slings must account for environmental factors like chemical exposure, which can affect strength.

Effects of Temperature and UV Exposure

  • Roundslings' efficacy varies by material; polypropylene and polyester are rated for different temperature ranges.
  • Moisture at low temperatures can lead to ice formation, damaging the sling.
  • Solar degradation affects all textile fibres, leading to brittleness in synthetic materials over time.

Summary of Critical Components

  • Essential components include cover, stitching, metal fittings, and identification labels, all vital for sling safety and functionality.

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LEEA – Lifting Accessories Diploma (LAC) Global - Workbook PDF

Description

This quiz covers various common tests used in operation testing, including SWL and deflection tests, proof load testing, and more. Understand the importance of these tests in ensuring thorough examinations and compliance with safety standards.

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